Chapter 3. Implementing Navigation
Apps on the Apple Watch, and the watchOS APIs that we use to work with them, are very obviously siblings of iOS. As you work with the watch, you see lots of similarities in the interface and in the code—but you’ll also see significant differences. When the iPhone introduced us to what was then iPhoneOS, it was presented as relying on the same technologies as OS X, but developed in a way that works better on smaller devices. watchOS is like that, but it moves iOS to a new device.
Navigating the Apple Watch
When you’re coming to the Apple Watch from other iOS devices, the main differences you’ll encounter are in simplification, which only makes sense when you consider that you’re dealing with much less space ...